Display panel, manufacturing method thereof and display device thereof

Patent metadata

Field	Value
Publication number	US-10627666-B2
Application number	US-201815976000-A
Country	US
Kind code	B2
Filing date	May 10, 2018
Priority date	Jan 31, 2018
Publication date	Apr 21, 2020
Grant date	Apr 21, 2020

Abstract

A display panel, manufacturing method and display device are provided. The display panel includes: multiple pixel units arranged in an array, each including first sub-pixel and white sub-pixel; and color-film substrate. The color-substrate includes basis substrate and color resist layer formed on the basis substrate, wherein the color resist layer at least includes first color resist in first color resist region and compensating color resist in second color resist region, first and second color resist regions respectively corresponding to first and second sub-pixels. The color-film substrate further includes photo spacer located on one side of color resist layer away from basis substrate, orthographic projection of photo spacer on a plane where display panel is located overlaps orthographic projection of first color resist on this plane, and orthographic projection of photo spacer on this plane overlaps orthographic projection of compensating color resist on this plane.

First claim

What is claimed is:

1. A display panel, comprising:
a plurality of pixel units arranged in an array, each of the plurality of pixel units comprising a first sub-pixel and a second sub-pixel, the second sub-pixel being a white sub-pixel; and
a color-film substrate, which comprises a basis substrate and a color resist layer formed on one side of the basis substrate, wherein the color resist layer at least comprises a first color resist located in a first color resist region and a compensating color resist located in a second color resist region, the first color resist region corresponding to the first sub-pixel and the second color resist region corresponding to the white sub-pixel;
wherein the color-film substrate further comprises a photo spacer, which is located on one side of the color resist layer away from the basis substrate, an orthographic projection of the photo spacer on a plane where the display panel is located overlaps an orthographic projection of the first color resist on the plane where the display panel is located, and the orthographic projection of the photo spacer on the plane where the display panel is located overlaps an orthographic projection of the compensating color resist on the plane where the display panel is located; and
the color-film substrate further comprises a black matrix located between the basis substrate and the color resist layer, the orthographic projection of the compensating color resist on the plane where the display panel is located is located completely within an orthographic projection of the black matrix on the plane where the display panel is located, and the black matrix is in direct contact with the compensating color resist.

2. The display panel according to claim 1 , wherein a thickness of the first color resist in a direction perpendicular to the plane where the display panel is located is a first thickness, a thickness of the compensating color resist in the direction perpendicular to the plane where the display panel is located is a compensating thickness, and the compensating thickness is equal to the first thickness.

3. The display panel according to claim 1 , wherein the first sub-pixel and the white sub-pixel are arranged in a column direction, the second color resist region comprises a second overlapping region and a second non-overlapping region, an orthographic projection of the second overlapping region on the plane where the display panel is located is located in the orthographic projection of the black matrix on the plane where the display panel is located; and an orthographic projection of the second non-overlapping region on the plane where the display panel is located does not overlap the orthographic projection of the black matrix on the plane where the display panel is located;
along the column direction, the compensating color resist comprises a first edge, and the second non-overlapping region comprises a second edge; along a row direction, the compensating color resist comprises a third edge, and the second non-overlapping region comprises a fourth edge; the first edge is an edge of the compensating color resist close to the second non-overlapping region along the column direction; the second edge is an edge of the second non-overlapping region close to the compensating color resist along the column direction; the third edge is an edge of the compensating color resist close to the second non-overlapping region along the row direction; the fourth edge is an edge of the second non-overlapping region close to the compensating color resist along the row direction.

4. The display panel according to claim 3 , wherein a distance between the first edge and the second edge is greater than 3 μm.

5. The display panel according to claim 3 , wherein a distance between the third edge and the fourth edge is greater than 3 μm.

6. The display panel according to claim 3 , wherein the compensating color resist is located in the second overlapping region.

7. The display panel according to claim 1 , wherein each of the plurality of pixel units comprises a third sub-pixel and a fourth sub-pixel; the color resist layer further comprises a third color resist located in a third color resist region and a fourth color resist located in a fourth color resist region, the third color resist corresponding to the third sub-pixel and the fourth color resist corresponding to the fourth sub-pixel; and wherein a thickness of the first color resist in a direction perpendicular to the plane where the display panel is located is a first thickness, and a thickness of the third color resist in a direction perpendicular to the plane where the display panel is located is equal to the first thickness, and a thickness of the fourth color resist in the direction perpendicular to the plane where the display panel is located is equal to the first thickness; and
the orthographic projection of the photo spacer on the plane where the display panel is located overlaps an orthographic projection of the third color resist on the plane where the display panel is located, and the orthographic projection of the photo spacer on the plane where the display panel is located overlaps an orthographic projection of the fourth color resist on the plane where the display panel is located.

8. The display panel according to claim 7 , wherein the compensating color resist comprises any one of a red compensating color resist, a green compensating resistance or a blue compensating color resist.

9. The display panel according to claim 7 , wherein each of the plurality of pixel units comprises eight sub-pixels, which are arranged in an array comprising two rows and four columns, wherein sub-pixels in a first row comprise the first sub-pixel, the third sub-pixel, the white sub-pixel and the fourth sub-pixel arranged in sequence, and sub-pixels in a second row comprise the white sub-pixel, the fourth sub-pixel, the first sub-pixel and the third sub-pixel arranged in sequence.

10. The display panel according to claim 1 , wherein the color-film substrate further comprises an over coating layer, which is located on one side of the color resist layer away from the basis substrate, and the photo spacer is located on one side of the over coating layer away from the basis substrate.

11. The display panel according to claim 1 , wherein the display panel further comprises an array substrate, which is provided to be opposite to the color-film substrate, the photo spacer being located on one side of the color-film substrate close to the array substrate.

12. A manufacturing method for a display panel, the display panel comprising a plurality of pixel units arranged in an array and each of the plurality of pixel units comprising a first sub-pixel and a white sub-pixel, wherein the manufacturing method comprises steps of:
providing a basis substrate;
forming a color resist layer on one side of the basis substrate, wherein the color resist layer at least comprises a first color resist located in a first color resist region and a compensating color resist located in a second color resist region, the first color resist region corresponding to the first sub-pixel and the second color resist region corresponding to the white sub-pixel;
forming a photo spacer on one side of the color resist layer away from the basis substrate to form a color-film substrate, wherein an orthographic projection of the photo spacer on a plane where the display panel is located overlaps an orthographic projection of the first color resist on the plane where the display panel is located, and the orthographic projection of the photo spacer on the plane where the display panel is located overlaps an orthographic projection of the compe

Assignees

• Xiamen Tianma Micro Electronics Co Ltd

Inventors

• Li Donghua
• Wei Xiaoli
• Wu Ling
• Shen Boping
• Zhou Xiufeng

Classifications

• G02F1/13394 Primary

  spacers regularly patterned on the cell subtrate, e.g. walls, pillars (G02F1/133377 takes precedence) · CPC title

• G02F1/133514 Primary

  Colour filters · CPC title

• G02F2201/52

  RGB geometrical arrangements · CPC title

• G02F1/133512

  Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence) · CPC title

• G02F1/1368

  in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)} · CPC title